Sony XM-GS400 vs Alpine KTP-445A Power Pack

 
Sony XM-GS400
Out of Stock 
$249.99
  • 160 watts RMS x 2 bridged
  • separate variable high- and low-pass filters for front and rear channels
  • preamp and speaker-level inputs
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Alpine KTP-445A Power Pack
In Stock 
$129.99
  • dimensions: 7-7/8"W x 1-1/2"H x 2-9/16"D
  • compact plug-and-play amplifier for Alpine in-dash receivers
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Product Features

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Condition New StockNew Stock
Performance Sony XM-GS400Alpine KTP-445A Power Pack
RMS Power Output (Wt x Channels)
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70 x 4
45 x 4
Peak Power Output (Wt x Channels)
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175 x 490 x 4
Power at 2 Ohms (Wt x Channels)
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80 x 4N/A
Bridged Power (Wt x Channels)
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160 x 2N/A
Minimum Impedance Bridged
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4N/A
Minimum Impedance Unbridged
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22
Best Frequency Response
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10-100k Hz20-20k Hz
THD at Rated RMS Power
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1%1%
Signal to Noise Ratio
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93 dB84 dB
Input Voltage
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14.4v14.4v
Features Sony XM-GS400Alpine KTP-445A Power Pack
Amplifier Class
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Not GivenD
Low-Pass Crossover Frequency
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50-300 HzN/A
Low-Pass Slope (dB/octave)
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12 dB/octaveN/A
High-Pass Crossover Frequency
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50-300 HzN/A
High-Pass Slope (dB/octave)
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12 dB/octaveN/A
Bass Boost
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0-10 dBNo
Bass Boost Frequency
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40 HzN/A
Fan Cooled
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YesNo
Fuse Rating
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6015
Speaker Level Inputs
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HarnessHarness
Preamp Outputs
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NoNo
Width (inches)
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10-3/47-7/8
Height (inches)
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2-1/81-1/2
Depth (inches)
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82-9/16
Parts Warranty
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3 Years1 Year
Labor Warranty
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3 Years1 Year
  Owner's ManualOwner's Manual
 Hands-on ResearchHands-on Research
 
Sony XM-GS400
Out of Stock 
$249.99
Add to Cart
Alpine KTP-445A Power Pack
In Stock 
$129.99
Add to Cart

Video: Car Amplifier PowerWe describe the basics of deciding how much power an amplifier should have when you're trying to match it to your speakers or subwoofers.

Video: Car Amplifier ChannelsOne of the first steps in choosing an amplifier for your car audio system is to decide how you intend to use the amplifier, and thus how many channels it should have. This short video gives you a quick overview to help answer that question.